The ICD-10 code for family history of hyperlipidemia is Z83.438. This Z-code falls under category Z83.4 for family history of endocrine and metabolic diseases. Use Z83.438 when a patient’s first-degree relative has documented hyperlipidemia, high cholesterol, or hypercholesterolemia. The code requires no additional characters. It serves primarily for risk factor identification. Do not use it as a primary diagnosis in most outpatient […]